In a surprise turn of events, Apple has revealed its list of 156 suppliers along with its annual 2012 Supplier Responsibility report, an annual report compiled from internal audits of all of Apple’s suppliers. Alongside Foxconn, which manufacturers products such as the iPhone, iPad and Mac-range of computers under contract, the list also included well-known companies such as Samsung, Panasonic, Sony and Toshiba (the full list can be viewed here). The suppliers listed account for around 97 percent of Apple’s external procurement measurements.